<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="产品名称" prop="proName">
        <el-input
          v-model="queryParams.proName"
          placeholder="请输入产品名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:product:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:product:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="productList"
      row-key="proId"
      :default-expand-all="isExpandAll"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column label="产品名称" prop="proName" width="400"/>
      <el-table-column
        label=""
        prop="proName"
        width="400"
        align="center"
      >
        <template slot-scope="scope">
          <el-button
            v-if="scope.row.proParentId !== 0 && scope.row.proParentId !== null"
            type="primary"
            plain
            size="mini"
            @click="handleWatch(scope.row)"
            v-hasPermi="['system:product:edit']"
          >查看供应商
          </el-button>
        </template>
      </el-table-column>
      <el-table-column label="" align="right" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['system:product:add']"
            v-if="scope.row.proParentId === 0 || scope.row.proParentId === null"
          >新增
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:product:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:product:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改产品分类（二级）对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="产品名称" prop="proName" required="required">
          <el-input v-model="form.proName" placeholder="请输入产品名称"/>
        </el-form-item>
        <el-form-item label="产品类型" prop="proParentId">
          <el-select v-model="form.proParentId" placeholder="请选择产品所属类型">
            <el-option label="无" value="0"/>
            <el-option
              v-for="item in productList"
              v-if="item.proParentId === 0 || item.proParentId === null"
              :key="item.proId"
              :label="item.proName"
              :value="item.proId"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!--    查看供应商对话框-->
    <el-dialog :title="title" :visible.sync="openShow" width="500px" append-to-body>
      <el-form ref="form" :model="form" label-width="100px">
        <el-form-item label="供应商名称" prop="supplierName">
          <el-tree
            class="tree-border"
            :data="supplierList"
            :default-expand-all="isExpandAll"
            node-key="parentId"
            ref="menu"
            empty-text="无数据"
            :props="{label: 'supplierName', children: 'children'}"
          ></el-tree>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancel">关 闭</el-button>
      </div>
    </el-dialog>


  </div>
</template>

<script>
import {listProduct, getProduct, delProduct, addProduct, updateProduct, WatchSupplier} from "@/api/system/product";
import {listSupplier} from "@/api/system/supplier";

export default {
  name: "Product",
  data() {
    return {
      // 是否展开
      isExpandAll: true,
      // 刷新表格
      refreshTable: true,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 产品分类（二级）表格数据
      productList: [],
      // 供应商信息数据
      supplierList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      openShow: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        proName: null,
        proParentId: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        proName: [
          {required: true, message: "产品名称不能为空", trigger: "blur"}
        ],
        proParentId: [
          {required: true, message: "产品类型不能为空", trigger: "change"}
        ]
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询产品分类（二级）列表 */
    getList() {
      this.loading = true;
      listProduct(this.queryParams).then(response => {
        this.productList = this.handleTree(response.data, 'proId', 'proParentId');
        // this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.openShow = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        proId: null,
        proName: null,
        proParentId: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.proId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      if (row !== undefined && (row.proParentId === 0 || row.proParentId === null)) {
        this.form.proParentId = row.proId;
      } else {
        this.form.proParentId = null; // 确保在一级菜单中添加产品
      }
      this.open = true;
      this.title = "添加产品";
      listProduct().then(response => {
        this.productList = this.handleTree(response.data, "proId", "proParentId");
      });
    },

    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const proId = row.proId || this.ids;
      getProduct(proId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改产品分类（二级）";
      });
    },

    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.proId != null) {
            updateProduct(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addProduct(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const proIds = row.proId || this.ids;
      const proName = row.proName || this.ids;
      this.$modal.confirm('是否确认删除"' + proName + '"的数据项？').then(function () {
        return delProduct(proIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/product/export', {
        ...this.queryParams
      }, `product_${new Date().getTime()}.xlsx`)
    },
    handleWatch(row) {
      this.reset();
      const proId = row.proId || this.ids;
      WatchSupplier(proId).then(response => {
        this.supplierList = this.handleTree(response.data, "supplierId", "parentId");
        this.form = response.data;
        this.openShow = true;
        this.title = "查看供应商";
      });
    }
  }
};
</script>
